Overview
The AD7865ASZ-1REEL, produced by Analog Devices Inc., is a high-performance, four-channel simultaneous sampling 14-bit analog-to-digital converter (ADC). This component operates from a single +5 V supply and features a successive approximation ADC with a conversion time of 2.5 µs. It includes four track/hold amplifiers, a 2.5 V reference, an on-chip clock oscillator, and signal conditioning circuitry. The AD7865ASZ-1REEL is designed to preserve the relative phase information of the signals on the four analog inputs, making it suitable for applications requiring precise and synchronized data acquisition.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 44-Lead MQFP (13.9mm x 10mm) |
| Number of Bits | 14-bit |
| Number of Channels | 4 channels |
| Sampling Rate | 350 kS/s |
| Analog Input Range | ±10 V, ±5 V, ±2.5 V |
| Overvoltage Protection | Up to ±20 V |
| Integral Nonlinearity (INL) | ±2 LSB |
| Differential Nonlinearity (DNL) | ±1 LSB |
| Supply Voltage | 5 V |
| Operating Temperature | -40°C to +85°C |
| Power Dissipation | 160 mW |
| Interface Type | Parallel |
Key Features
- Simultaneous sampling of four analog input channels to preserve relative phase information.
- Fast conversion time of 2.5 µs using successive approximation ADC architecture.
- On-chip clock oscillator and signal conditioning circuitry.
- Overvoltage protection up to ±20 V on analog inputs.
- High-speed parallel interface for data output.
- Low power consumption with a total power dissipation of 160 mW.
- Operating temperature range from -40°C to +85°C.
Applications
The AD7865ASZ-1REEL is suitable for various high-performance data acquisition applications, including:
- Industrial control and automation systems.
- Medical devices requiring precise and synchronized data acquisition.
- Aerospace and defense systems where high accuracy and reliability are crucial.
- Automotive systems, particularly in safety-critical and high-reliability applications.
- Test and measurement equipment where simultaneous sampling is essential.
Q & A
- What is the resolution of the AD7865ASZ-1REEL?
The AD7865ASZ-1REEL has a resolution of 14 bits.
- How many channels does the AD7865ASZ-1REEL support?
The AD7865ASZ-1REEL supports four simultaneous sampling channels.
- What is the sampling rate of the AD7865ASZ-1REEL?
The sampling rate of the AD7865ASZ-1REEL is 350 kS/s.
- What are the available analog input ranges for the AD7865ASZ-1REEL?
The AD7865ASZ-1REEL accepts analog input ranges of ±10 V, ±5 V, and ±2.5 V.
- Does the AD7865ASZ-1REEL have overvoltage protection?
- What is the power supply voltage for the AD7865ASZ-1REEL?
The AD7865ASZ-1REEL operates from a single +5 V supply.
- What is the operating temperature range of the AD7865ASZ-1REEL?
The operating temperature range is from -40°C to +85°C.
- What type of interface does the AD7865ASZ-1REEL use for data output?
The AD7865ASZ-1REEL uses a high-speed parallel interface for data output.
- Is the AD7865ASZ-1REEL suitable for automotive applications?
- What is the package type of the AD7865ASZ-1REEL?
The AD7865ASZ-1REEL comes in a 44-Lead MQFP package.
